About what SVXCommuter said, about the line pressure to the Transfer clutch with the dropping resistor disconnected. This would explain the problems that some have with transfer clutch binding, when the resistor is disconnected, or if the Shift kit is adjusted too much.
In short, the TCU sets the line pressure by adjusting the A solenoid, it knows what the pressure should be, so it sends the apropreate signal to the clutch, but if the pressure is higher, due to the resistor, the clutch pressure will be higher, to cause the binding.
Harvey.
